Sony SS-DV2D Service Manual page 47

Micro hi-fi component system
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• IC Pin Function Description
MAIN BOARD IC501 µPD78007 (SYSTEM CONTROLLER)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
Pin Name
I/O
RMUT
O
Tuner muting signal output
PMUT
O
Tape PLAY muting signal output
RPHD
O
REC/PLAY control signal output
BIAS
O
BIAS ON/OFF control signal output
TSOL
O
Tape solenoid control signal output
TMOT
O
Tape motor control signal output
TCNT
O
Tape control signal output
SMUTE
I
Not used Fixed at "L" in this set.
GND
Ground terminal
VDD
Power supply terminal (+5V)
STE
I
Stereo signal input
TUCE
O
Chip enable signal output to the tuner
TUND
I
Tuning signal input from the tuner
TOP
O
DVD/CD tray open control signal output
VEDA
O
Chip select output to the FL driver
VFCK
O
Clock output to the FL driver
VFSTB
O
Data output to the FL driver
TUDI
O
Data output to the tuner
TUDO
I
Data input from the tuner
TUCK
O
Clock output to the tuner
RDDA
O
Strobe signal input to the tuner
VUP
I
Volume up input
FPON
O
FL power supply control signal output
VDDI
Power supply terminal (+5V)
GND
Ground terminal
KEY1
I
Function key input
KEY2
I
Function key input
KEY3
I
Function key input
SFTY
I
AC cut detect signal input
HDPN
I
Tape SW (PACK, HDPLY) signal input
REPT
I
Tape SW (RECF, RECR) signal input
VER
I
Not used Fixed at "L" in this set.
VDWN
I
Volume down input
AVR
Reference voltage terminal
TCL
O
DVD/CD tray close control signal output
RST
I
System reset signal input
XT2
I
Subclock input (32.768KHz)
XT1
O
Subclock output (32.768KHz)
IC
Not used
X2
I
Main system clock input (8.38MHz)
X1
O
Main system clock output (8.38MHz)
GND
Ground terminal
SHFT
Not used Fixed at "L" in this set.
INH
I
Power down detect signal input
REM
I
SIRCS signal input from the remote control reciever
RDCK
O
RDCK signal output to the tuner
MRST
I
MPEG flash memory reset signal input
Published in Heiloo Holland
Description
HCD-DV2D
07/11/2016
45

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